Psilochorus imitatus Gertsch and Mulaik 1940

Male: (N = 5) Total length: 2.70 ± 0.55; carapace length: 1.13 ± 0.12; carapace width: 1.13 ± 0.17; leg 1: 19.39 ± 3.63 (5.09 ± 0.99 + 0.36 ± 0.05 + 5.70 ± 1.16 + 6.99 ± 1.40 + 1.26 ± 0.13); tibia 2: 3.86 ± 0.72; tibia 3: 2.90 ± 0.53; tibia 4: 3.90 ± 0.63. 18 leg I tarsal segments; femur 1 / carapace length: 4.5 ± 0.60; RT at 12.1 – 14.8 %; DT at 6.1 – 9.2 %. Color typical for the genus. Spur large, originating from the proximal portion of the chelicera (Fig. 83), slight mesal curve in dorsal view, end truncate to rounded (Fig. 82). Procursus long, narrow, distal area with a dorsal step, end square (Fig. 86). The bulb apophysis tip is bifurcate, with the prolateral tip curving beyond the retrolateral tip to a point. The retrolateral tip extending half as far as the prolateral, enclosed in the retrolateral tab (Figs. 84, 85). Female: (N = 5) Total length: 2.86 ± 0.24; carapace length: 1.07 ± 0.09; carapace width: 1.09 ± 0.11; leg 1: 15.19 ± 2.42 (4.06 ± 0.70 + 0.37 ± 0.09 + 4.54 ± 0.77 + 5.16 ± 0.88 + 1.06 ± 0.13); tibia 2: 3.05 ± 0.55; tibia 3: 2.43 ± 0.39; tibia 4: 3.12 ± 0.54. 17 – 18 leg I tarsal segments; femur 1 / carapace length: 3.78 ± 0.37; RT at 12.5 – 16.3 %; DT at 6.2 – 12.4 %. Color typical for the genus. No AEP. MEP rounded in posterior (Fig. 89) and anterior views (Fig. 87), with excised area for PEP projection rounded mesally, with lateral edges straight (Fig. 88). PEP rounded, PEP projection as long as wide or longer, dmPEP touching (Fig. 88). Pore plates drop shaped, with pointed ends converging anteriorly. PEP tubes short, sharply curved to dmPEP (Fig. 89).

Types. ɗ holotype, Ψ allotype and ɗ and Ψ paratypes from Sanderson (30.14 N, 102.39 W), Terrell County, Texas USA; coll: S Mulaik, 4 - Jul- 1934. AMNH. Paratypes examined. Specimens examined. 653 ɗ, 744 Ψ; USA, California, Los Angeles County, 1 Ψ, Los Angeles, MCZ 33239, 01 - May- 1972, MCZ; Colorado, Adams County, 1 ɗ, 3 Ψ, 2511 W 108 th Pl, Westminster, James D W, 03 - Jul- 2000, DMNS ZA. 8974; 1 Ψ, Barr Lake S P, Morrison B, 12 - Jul- 2001, DMNS ZA. 8952; 1 Ψ, same locale, no name given, 18 - May- 1968, DMNS ZA. 3668; Alamosa County, 2 Ψ, BLM Rd to Blanca Peak, off Co 150, Slowik J, 16 - Jul- 2005, DMNS ZA. 9339; 1 Ψ, Great Sand Dunes N P, off Mosca Pass Trail, Cushing P E, 30 - Jun- 2006, DMNS ZA. 12976; 1 F, Medano Ranch, Cushing P E & Santangelo R, 25 - Jul- 2000, DMNS ZA. 8981; 4 Ψ, San Luis Lakes S P, Cushing P E, 11 - Sep- 1999, DMNS ZA. 8949; Arapahoe County, 1 Ψ, 15859 E Jamison Dr, Apt 9112, Englewood, Price P, 14 - Mar- 2004, DMNS ZA. 8978; 1 ɗ, same locale, Price P, 14 - Mar- 2004, DMNS ZA. 8979; 1 Ψ, 21901 E Hampden Ave, Plains Coservation Center, Haas F X, 21 - Aug- 1999, DMNS ZA. 3662; 2 Ψ, 8124 S Ireland Way, Centennial, Smith C E, 15 – 17 Jul 2001, DMNS ZA. 9093; 2 Ψ, Aurora Reservoir, Morrison B, 10 - Jul- 2001, DMNS ZA. 8976; 1 Ψ, Plains Conservation Center 21901 E Hampden Ave, Aurora, Burleigh R, 21 - Aug- 1999, DMNS ZA. 8977; Baca County, 1 Ψ, Comanche National Grasslands Picture Canyon, Cushing P E, 16 – 17 Jun 1999, DMNS ZA. 3659; Boulder County, 1 Ψ, Boulder Co, Vogel B, 08 - May- 1971, DMNS ZA. 8970; 1 ɗ, 5 mi W of Longmont, Crane Hollow Dr, K M Stone, MCZ 68017, 13 – 27 Jun 1991, MCZ; 1 ɗ, same locale, Crane Hollow Dr, K M Stone, 15 – 29 Jul 1992, DMNS ZA. 8971; 2 ɗ 5 Ψ, Eldorado Canyon S P, Eldorado Canyon Trail 1 / 2 mi N of visitor center, Siderhurst M, 15 - May- 1999, DMNS ZA. 8967; 3 Ψ, Eldorado Canyon S P, Eldorado Canyon Trail nr visitor center, Siderhurst L & M, 30 - Jun- 1999, DMNS ZA. 8972; 1 Ψ, same locale, Siderhurst L, 25 - Jun- 1999, DMNS ZA. 3669; 1 Ψ, Grasslands Bioblitz, Hwy 128 & Hwy 93, James D W, 03 - Jul- 2004, DMNS ZA. 9011; 1 ɗ, Nederland, Mowrer K, 06 - Aug- 1973, DMNS ZA. 11901; 4 ɗ 5 Ψ, South of County Rd 67, Siderhurst L & M, 05 - Jul- 1999, DMNS ZA. 3637; 1 Ψ, Steamboat Mt, Lyons, Keimig A, 03 - Oct- 1999, DMNS ZA. 8968; 1 Ψ, W Eldorado Springs off Rd 170, Morrison B, 17 - Sep- 2002, DMNS ZA. 8975; Custer County, 2 ɗ 2 Ψ, Smith Creek, 7 Mi SW Wetmore, H & L Levi, 10 - Aug- 1959, AMNH; Delta County, 1 ɗ, 1565 SE 3 rd St, Cedaredge, Fraser F, 5 – 26 May 2001, DMNS ZA. 9067; 1 Ψ, 2121 Iris Lane Cedaredge, Fraser F, 22 - Oct- 1999, DMNS ZA. 3687; 1 Ψ, same locale, Fraser F, 24 - Aug- 1999, DMNS ZA. 9068; 1 ɗ, same locale, Fraser F, 8 – 15 Aug 1999, DMNS ZA. 9066; Denver County, 1 Ψ, Bluff Lake Park, Berhaus H M, 12 - Jun- 2004, DMNS ZA. 9064; 1 Ψ, Bluff Lake Park, Schacle L & Stockton R, 12 - Jun- 2004, DMNS ZA. 9063; 1 ɗ, Denver, Van Riper W, 09 - Aug- 1944, DMNS ZA. 1946; 1 Ψ, J K Mullen High School, 3601 S Lowell Blvd, Denver, George, Chelsea Johnny & Mary, 15 - Sep- 2000, DMNS ZA. 9061; 1 ɗ, same locale, 3601 S Lowell Blvd, Denver, Spencer V, Brandon S & Bennnott B, 13 - Sep- 1999, DMNS ZA. 9062; Douglas County, 1 Ψ, Castlewood Canyon off HWY 86, Morrison B, 11 - Sep- 2002, DMNS ZA. 9060; 1 ɗ, 1 Ψ, Roxborough S P, Fountain Valley Trail, Siderhurst S & M, 18 - Jun- 1999, DMNS ZA. 9059; 1 Ψ, Roxborough State Park near visitor center, Burleigh R & Swann E, 28 - Aug- 1999, DMNS ZA. 3650; 1 ɗ, same locale, Burleigh R, 18 - Sep- 1999, DMNS ZA. 3667; 1 ɗ, 1 Ψ, W Greenland O S, Morrison B, 02 - Jul- 2004, DMNS ZA. 9013; 1 Ψ, W Sharptail Ridge O S, Morrison B, 14 - Jul- 2004, DMNS ZA. 8973; 1 Ψ, W. Glendale Farm O S, Morrison B, 22 - Jul- 2004, DMNS ZA. 8969; El Paso County, 2 Ψ, 601 N 30 th St Colorado Springs, Mooney L, 12 - Aug- 1999, DMNS ZA. 3649; 1 Ψ, 601 N 30 th St Colorado Springs, Mooney L & Dashiell-Mooney, 10 - Aug- 1999, DMNS ZA. 3666; 2 Ψ, Cheyenne Mtn S P, Gully Site, Slowik J, 09 - Sep- 2005, DMNS ZA. 10632; 1 Ψ, Cheyenne Mtn S P, West Edge, Slowik J, 10 - Sep- 2005, DMNS ZA. 10621; 1 Ψ, Cheyenne Mtn S P, Above Lime Kiln drainage, Cushing P E, 28 - Jul- 2001, DMNS ZA. 9052; 2 ɗ, 4 Ψ, Cheyenne Mtn S P, Santangelo R, 28 - Jul- 2001, DMNS ZA. 9051; 2 ɗ, 6 Ψ, Cheyenne Mtn S P, Lime Kiln Drainage, Santangelo R, 27 - Jul- 2001, DMNS ZA. 9055; 1 Ψ, Chico Basin Ranch, sand sage site, Cox S M, 14 - May- 2004, DMNS ZA. 9057; 1 Ψ, same locale, Hiester T & Wojcicki D, 14 - May- 2004, DMNS ZA. 9095; 1 Ψ, same locale, James D W, 14 - May- 2004, DMNS ZA. 9058; 3 F, Chico Basin Ranch, Cushing P E, 14 - May- 2004, DMNS ZA. 8980; 1 ɗ, Chico Basin Ranch, Cushing P E, 18 – 27 May 2002, DMNS ZA. 9056; 22 ɗ, Peyton Rd, B Banta from 20 vials, 63 – 64, CAS; 25 Ψ, Peyton Rd, B Banta from 24 vials, 63 – 64, CAS; 2 ɗ 1 Ψ, Peyton Rd, Brookhart J, 11 - Aug- 1976, DMNS ZA. 8956; 2 ɗ, Peyton Rd, Brookhart J, 11 - Aug- 1976, DMNS ZA. 8955; 2 ɗ, Peyton Rd, Brookhart J, 3 – 24 May 1976, DMNS ZA. 9053; 2 Ψ, Peyton Rd, Brookhart J, 3 – 24 May 1976, DMNS ZA. 9054; 1 ɗ, Rock Creek Canyon, 9 mi Colorado Springs, Vogel B, 08 - Jul- 1975, DMNS ZA. 9050; Elbert County, 1 Ψ, 1177 Cherri Lane, Parker, Mace R, 23 – 28 Jul 2001, DMNS ZA. 9049; Fremont County, 1 ɗ, Wet Mountains, B H Banta, 23 - May- 1964, CAS; Garfield County, 1 ɗ, 3 mi NW of Newcastle, Small B & Douglas B, 15 – 22 Aug 1999, DMNS ZA. 9048; 1 Ψ, Cedar Mountain, BLM Rd 8042, Potter K M, 11 - May- 2000, DMNS ZA. 9046; 2 Ψ, JQS Rd, Rifle, Potter K M, 12 - May- 2000, DMNS ZA. 9047; Gilpin County, 1 Ψ, Cold Spring camp, 7 mi N Black hawk, MCZ 33241, 30 - Jun- 1952, MCZ; 1 Ψ, Golden Gate S P, Fraser Meadow Trail, James D W, 28 - Jul- 2003, DMNS ZA. 9028; Gunnison County, 1 ɗ, 1 Ψ, 5 Mi S Gunnison, Gold Basin Rd, H & L Levi, 08 - Jun- 1959, AMNH; 1 Ψ, Clark Property, Hwy 50 and 114 Ortega M, 01 - Jun- 2005, DMNS ZA. 9655; 1 ɗ, Clark Property, Hwy 50 and 114, Starnes D W, 01 - Jun- 2005, DMNS ZA. 9656; Huerfano County, 1 Ψ, 4 mi NW Walsenburg, Vogel B, 02 - Jul- 1975, DMNS ZA. 9024; 1 ɗ, Dog Spring Arroyo, 17 - Jun- 1962, CU; 3 Ψ, Lathrop S P, 2 mi W Walsenburg, Vogel B, 01 - Jul- 1975, DMNS ZA. 9026; 2 ɗ, W Lathrop Park, Walsenburg, Morrison B, 24 - Sep- 2002, DMNS ZA. 9027; 1 Ψ, Walsenburg, Rt 160 W, Parshley B, 23 - Jul- 2000, DMNS ZA. 9025; 1 ɗ, 1 Ψ, Wylie Gulch, 7 mi N Gardner, Vogel B, 05 - Jul- 1975, DMNS ZA. 9023; Jefferson County, 1 Ψ, 24248 Matterhorn Dr, Indian Hills, Owens K, 11 - Sep- 2000, DMNS ZA. 9016; 1 Ψ, 28164 Tresine Dr, Evergreen, Slowik J, 26 - May- 2001, DMNS ZA. 9017; 1 ɗ, 3030 Forest Way, Evergreen, Slowik J, 15 - Oct- 2005, DMNS ZA. 12702; 4 F, Audubon Center, Cushing P E, 10 - Sep- 2004, DMNS ZA. 9012; 1 Ψ, Bioblitz, nr. Coal Creek, James D W, 25 - Jun- 2004, DMNS ZA. 7720; 2 ɗ, 6 Ψ, Dinosaur Ridge, Morrison B, 20 - Jul- 2001, DMNS ZA. 9021; 3 Ψ, Falcon Park Kittredge near Meyers Gulch Rd, Owens K, 07 - Oct- 1999, DMNS ZA. 3641; 1 Ψ, Golden Gate Canyon S P, Burrows R W, 28 - Jul- 2003, DMNS ZA. 9005; 3 Ψ, Golden Gate Canyon S P, off Hiway 119 near visitor center, Siderhurst L & M, 26 - Jun- 1999, DMNS ZA. 3645; 1 Ψ, Lookout Mt, 1.9 mi off Hwy 6, Morrison B, 11 - Aug- 2001, DMNS ZA. 9018; 2 Ψ, Mount Falcon Park, nr top park entrance, Owens K, 24 - Jun- 2000, DMNS ZA. 9014; 1 Ψ, Mt. Glennon Park, Soda lake Rd, Morrison B, 26 - May- 2001, DMNS ZA. 9015; 1 Ψ, O'Fallon Park, Owens K P, 16 - Apr- 2000, DMNS ZA. 3647; 1 ɗ, 1 Ψ, Pine Valley, Morrison B, 22 - Jul- 2002, DMNS ZA. 9019; 1 Ψ, Pine Valley, Morrison B, 22 - Jul- 2002, DMNS ZA. 9020; 1 ɗ, 1 Ψ, W 1 / 2 mi W off So Kipling on Marlowe Ave, Morrison B, 03 - Aug- 2002, DMNS ZA. 9004; 1 Ψ, W Base of Mt Morrison at Red Rocks, Morrison B, 25 - Sep- 2002, DMNS ZA. 9022; 1 Ψ, W. Zorro Trail off Rooney Rd, Dinosaur Ridge, Morrison B, 18 - May- 2004, DMNS ZA. 8951; 1 Ψ, Waterton Canyon, 1 / 4 mi up, Morrison B, 14 - Apr- 2004, DMNS ZA. 9006; 1 ɗ, Waterton, NE of the bridge, Morrison B, 31 - Mar- 2004, DMNS ZA. 9010; 1 ɗ, Zorro Trail, Dinoridge, Morrison B, 21 - Apr- 2004, DMNS ZA. 9009; 1 Ψ, same locale, Morrison B, 27 - Apr- 2004, DMNS ZA. 9007; 1 Ψ, same locale, Morrison B, 03 - May- 2004, DMNS ZA. 9008; Larimer County, 2 Ψ, Larimer County, Kroger D, 23 – 25 May 1998, DMNS ZA. 6113; 1 ɗ, 1713 Richard Lake Rd, Fort Collins, Wall P L, 17 - Aug- 1999, DMNS ZA. 8947; 1 Ψ, same locale 80524, Wall P L, 08 - Sep- 1999, DMNS ZA. 3648; 1 ɗ, same locale, Wall P L, 12 - Apr- 2000, DMNS ZA. 3646; 1 ɗ, 2 Ψ, same locale, Cushing P E, 20 - May- 2002, DMNS ZA. 9001; 1 Ψ, same locale, Wall P L, 14 - Aug- 2000, DMNS ZA. 8958; 4 Ψ, same locale, Wall P L, 07 - Sep- 2001, DMNS ZA. 8957; 1 Ψ, same locale, Wall P L, 23 - Apr- 2000, DMNS ZA. 8069; 2 Ψ, same locale, Wall P L, 14 - Oct- 1999, DMNS ZA. 8070; 1 ɗ, 1895 Fall River Rd, Estes Park, King P, 18 - Aug- 2002, DMNS ZA. 8999; 2 Ψ, CSFS Nursery, W of Fort Collins, Rhodes C, 04 - Jun- 1988, DMNS ZA. 11904; 1 Ψ, Fossil Creek Nursery, Rhodes C, 10 - Jul- 1988, DMNS ZA. 11902; 1 Ψ, Ft Collins, no name given, 14 - Jun- 1998, DMNS ZA. 6114; 1 Ψ, Lory S P just W of Horsetooth Reservoir Wells Gulch Trail, Siderhurst L & M, 19 - Jun- 1999, DMNS ZA. 6115; 2 Ψ, Roosevelt National Forest Mt Park Campground, Siderhurst M & L, 14 - Aug- 1999, DMNS ZA. 3640; 1 Ψ, Shield St and Cache La Poudre River, Rhodes C, 02 - Jul- 1988, DMNS ZA. 11903; 1 Ψ, Wellington S W A, Morrison B, 23 - Sep- 2002, DMNS ZA. 9000; Las Animas County, 1 ɗ, 4 Ψ, Las Animas County, Brookhart J, 14 - Jun- 1966, DMNS ZA. 8994; 1 Ψ, Bar Ni Ranch Bioblitz, Burrows R W, 13 - Jul- 2001, DMNS ZA. 8995; 1 Ψ, Bar Ni Ranch Bioblitz, Cushing P E, 14 - Jul- 2001, DMNS ZA. 8992; 1 Ψ, Bar Ni Ranch Bioblitz, James D W, 14 - Jul- 2001, DMNS ZA. 8993; 3 ɗ, 4 Ψ, Bar Ni Ranch Bioblitz, Pogue C, 14 - Jul- 2001, DMNS ZA. 8997; 1 ɗ, 4 Ψ, Hwy 109 B, Sta 2, 12 - Jul- 1966, AMNH; 2 ɗ, 1 Ψ, Hwy 109 c, Sta 9, 10, 13, 14, 07 - Jun- 1966, AMNH; 1 Ψ, Hwy 109 B, Brookhart J, 05 - Jul- 1965, DMNS ZA. 8990; 1 ɗ, Hwy 109, Brookhart J, 05 - Jul- 1966, DMNS ZA. 8991; 1 Ψ, Hwy 109, Brookhart J, 19 - Jul- 1966, DMNS ZA. 8996; 2 Ψ, Trinidad S R A, nr visitor center & Trinidad Lake, Siderhurst L & M, 17 - Jul- 1999, DMNS ZA. 3676; 1 Ψ, same locale, Briscoe M, 17 - Jul- 1999, DMNS ZA. 3677; Mesa County, 2 Ψ, Mesa County, Root J J, 01 - Oct- 2000, DMNS ZA. 8987; 2 Ψ, Mesa County, Root J J, 21 - May- 2001, DMNS ZA. 8985; 1 Ψ, 127 N Ash St, Fruita, Orr T, 20 - Aug- 2000, DMNS ZA. 8988; 1 ɗ, 15656 57 and a half Rd, Collbran, Currier D & S & R & B, 24 - Sep- 2000, DMNS ZA. 9045; 1 Ψ, CO 105, Bank of Colorado River, Burrows R W, 28 - Aug- 2001, DMNS ZA. 8989; 1 Ψ, Outside Colorado N M, Shilodon N & Bonham S, 23 - May- 1999, DMNS ZA. 3638; 1 Ψ, Ranch Learning Center, 5133 KE Rd, Mesa, Provera M, 23 - Sep- 2001, DMNS ZA. 8986; 1 Ψ, Unaweep Canyon, Stubbs J, 23 - Aug- 2002, DMNS ZA. 8998; Moffat County, 8 ɗ, 3 Ψ, 22 mi W of Craig, Hwy 40 and Union Carbide Rd, Brookhart J, 10 - Aug- 1976, DMNS ZA. 8983; 7 ɗ, 6 Ψ, 22 mi W of Craig, Hwy 40 and Union Carbide Rd, Brookhart J, 10 - Aug- 1976, DMNS ZA. 8982; 1 Ψ, BLM land of Cty Rd 165, Betzen N, 04 - Jun- 2005, DMNS ZA. 9360; 2 Ψ, BLM land off Cty Rd 318, W of Sunbeam, Cushing P E & Slowik J, 04 - Jun- 2005, DMNS ZA. 9215; 1 ɗ, Dinosaur N M, E Entrance, V Brach, MCZ 68019, 13 - Aug- 1973, MCZ; 1 ɗ, Dinosaur N M, Echo Park, Slowik J, 11 – 13 Aug 2006, DMNS ZA. 13072; Montezuma County, 1 Ψ, 801 Austin, Cortez, Haynes P E, 23 - Jun- 2001, DMNS ZA. 8984; 1 Ψ, Mesa Verde N P E Fork Navajo, Slowik J, 02 - May- 2006, DMNS ZA. 12555; 1 Ψ, Mesa Verde N P, Longhouse, Ryan S, 02 - May- 2006, DMNS ZA. 12577; 2 Ψ, Mesa Verde N P, Morfield Canyon, Cushing P E, 04 - Jun- 2006, DMNS ZA. 12631; 1 Ψ, Mesa Verde N P, Morfield Ridge to Big Mesa, Gyla M, 02 - Jul- 2004, DMNS ZA. 7840; 2 ɗ, 2 Ψ, Mesa Verde N P, Prater Canyon, Cushing P E, 15 - Aug- 2005, DMNS ZA. 10687; 2 Ψ, same locale, Cushing P E Slowik J & Hiester T, 14 - Aug- 2005, DMNS ZA. 10685; 1 ɗ, 3 Ψ, same locale, Hiester T, 03 - Jun- 2006, DMNS ZA. 12681; 1 Ψ, same locale, Slowik J, 15 - Aug- 2005, DMNS ZA. 10689; 2 ɗ, 3 Ψ, same locale, Stephenson J, 15 - Aug- 2005, DMNS ZA. 10688; 1 Ψ, Mesa Verde N P, Nabors A, 04 - Jun- 2001, DMNS ZA. 8936; 1 ɗ, 1 Ψ, Mesa Verde N P, Thompson C, 04 - Jun- 2001, DMNS ZA. 8937; 1 Ψ, Mesa Verde N P, Uziel K, 04 - Jun- 2001, DMNS ZA. 8938; 1 Ψ, Mesa Verde N P, Yost C, 19 - Jun- 2002, DMNS ZA. 9069; 2 Ψ, Morfield Canyon, Mesa Verde N P, Spandl & Hollins, 31 - Aug- 2004, DMNS ZA. 7691; 1 ɗ, 7 Ψ, Prater Canyon, Cushing P, 03 - Jun- 2006, DMNS ZA. 12654; 1 ɗ, 1 Ψ, Wetherill Mesa, Mesa Verde N P, Spandl & Hollins, 02 - Sep- 2004, DMNS ZA. 7692; 1 Ψ, Yellow Jacket, 15 - Jun- 1961, CU; 5 Ψ, Yellow Jacket, 22 - Jul- 1961, CU; Montrose County, 1 Ψ, 16000 ' s 62.50 Rd, Montrose, Betzen N, 8 – 14 Oct 2000, DMNS ZA. 8932; 1 Ψ, 61113 Falcon Rd, Olathe, Betzen N, 25 - Aug- 1999, DMNS ZA. 3671; 3 Ψ, same locale, Betzen N, 17 - Feb- 2001, DMNS ZA. 8939; 1 Ψ, same locale, Betzen N, 24 - Aug- 2000, DMNS ZA. 8933; 1 Ψ, same locale, Betzen N, 23 - May- 2000, DMNS ZA. 8940; 1 Ψ, same locale, Betzen N, 15 - Aug- 2000, DMNS ZA. 8934; 1 ɗ, 1 Ψ, same locale, Betzen N, 16 - Apr- 2000, DMNS ZA. 8929; 1 Ψ, same locale, Betzen N, 15 - Aug- 2000, DMNS ZA. 8943; 1 Ψ, same locale, Betzen N, 21 - May- 2000, DMNS ZA. 8942; 1 ɗ, same locale, Betzen N, 02 - Sep- 2000, DMNS ZA. 8931; 2 ɗ 5 Ψ, Black Canyon N M, 07 - May- 1961, CU; 2 ɗ, 4 Ψ, Black Canyon N M, N Rim, H & L Levi, 29 - Jul- 1957, AMNH; 12 ɗ, 6 Ψ, Hwy 141, 2 mi N Uravan, Brookhart J O & I P, 10 Jun – 26 Aug 2000, DMNS ZA. 8935; 1 ɗ, 5 Ψ, Hwy 141, same locale, Brookhart J O & I P, 27 Aug 2000 – 27 May 2001, DMNS ZA. 8941; 19 ɗ, 17 Ψ, Hwy 141, same locale, Brookhart J O & I P, 10 Jun – 26 Aug 2000, DMNS ZA. 9003; Otero County, 1 ɗ, Comanche N G, Top of Vogel Canyon, Slowik J, 11 – 12 Sep 2005, DMNS ZA. 10602; 2 Ψ, Comanche N G, Vogel Canyon, Cushing P E, 26 - Sep- 2001, DMNS ZA. 8928; 2 Ψ, same locale, Santangelo R, 26 - Sep- 2001, DMNS ZA. 8930; 1 ɗ, 2 Ψ, same locale, Hillman Z, 05 - Sep- 2004, DMNS ZA. 7559; 1 ɗ, 1 Ψ, same locale, Hillman Z, 05 - Sep- 2004, DMNS ZA. 7558; 2 ɗ, 1 Ψ, Hwy 109 A, Sta 18, 21 - Jun- 1966, AMNH; 1 Ψ, Hwy 109, Sta 1, 21 - Jun- 1966, AMNH; 1 Ψ, Hwy 109, Sta 6, 05 - Jun- 1967, AMNH; Pueblo County, 1 ɗ, Pueblo County, J O B, 29 - Jul- 1979, DMNS ZA. 9029; 2 Ψ, 1083 S Quantico Dr, Pueblo West, Joy M, 09 - Oct- 1999, DMNS ZA. 3674; 2 ɗ, 7 mi NE Boone on County Rd. 611, Brookhart J, 11 - Aug- 1976, DMNS ZA. 8923; 3 ɗ, same locale, Brookhart J, 15 - Jul- 1971, DMNS ZA. 9034; 1 ɗ, 1 Ψ, Beulah Hwy, Brookhart, 01 - Sep- 1965, AMNH; 1 ɗ, 2 Ψ, Boone Co, Grid A, Line 4 Sta 5 – 8 Brookhart J, 20 - Jun- 1967, DMNS ZA. 9032; 2 ɗ, Boone, Brookhart J, 07 - Aug- 1970, DMNS ZA. 9030; 2 ɗ, Boone, Brookhart J, 20 - May- 1905, DMNS ZA. 9033; 1 ɗ, Boone, Brookhart J, 07 - Aug- 1970, DMNS ZA. 9031; 1 ɗ, Boone, Grid A, Line 4, Sta 17 – 20, 24 - Jul- 1967, AMNH; 1 Ψ, Boone, Grid A, Line 2 Sta 5 – 8, 06 - Jun- 1967, AMNH; 1 ɗ, Boone, Grid A, Line 4, Sta 12 - LO, 13 - Jun- 1967, AMNH; 1 Ψ, Boone, Brookhart J, 11 - Aug- 1976, DMNS ZA. 3688; 1 ɗ, Boone, Brookhart J, 05 - Jul- 1978, DMNS ZA. 3670; Rio Blanco County, 1 Ψ, Mellen Hill, 98 Rd, Rangely, Potter K, 07 - May- 2002, DMNS ZA. 8950; Saguache County, 1 ɗ, 1 Ψ, Saguache County, Brookhart J, 02 - Aug- 1965, DMNS ZA. 8925; 1 ɗ, 1 Ψ, same locale, Brookhart J, Jun-Aug 1965, DMNS ZA. 8927; 1 Ψ, same locale, Brookhart J, 20 - Jul- 1965, DMNS ZA. 8924; 1 Ψ, Baca Ranch, Cushing P E, 01 - Jul- 2006, DMNS ZA. 13003; 1 Ψ, Baca Ranch, Slowik J, 01 - Jul- 2006, DMNS ZA. 13037; 1 ɗ, 1 Ψ, Hooper, Cemetery Rd, Brookhart J, 01 - Jun- 1965, DMNS ZA. 8926; Teller County, 1 Ψ, Manitou Experimental Forest, Morrison B, 07 - Jul- 2001, DMNS ZA. 9096; Weld County, 1 ɗ, 1291 Co Rd 11, Erie, Goltl J, 25 - Jun- 1999, DMNS ZA. 9102; 2 Ψ, 7 mi NE Roggen, Vogel B, 19 - Jun- 1966, DMNS ZA. 667; 1 Ψ, Pawnee N G, nr Murphy Reservoir, off Grassland Rd, Cushing P E, 08 - Oct- 2000, DMNS ZA. 9099; 2 ɗ, 1 Ψ, Pawnee N G, nr Murphy Reservoir, off Grassland Rd, James D W, 08 - Oct- 2000, DMNS ZA. 9097; 1 Ψ, Pawnee N G, nr Murphy Reservoir off Grassland Rd, Santangelo R, 08 - Oct- 2000, DMNS ZA. 9092; 1 ɗ, 2 Ψ, Pawnee N G, Pawnee Buttes Trailhead, Cushing P E, 08 - Oct- 2000, DMNS ZA. 9101; 2 ɗ, 4 Ψ, Pawnee N G, Pawnee Buttes Trailhead, James D W, 08 - Oct- 2000, DMNS ZA. 9098; 2 ɗ, 2 Ψ, Pawnee N G, Pawnee Buttes Trailhead, Santangelo R, 08 - Oct- 2000, DMNS ZA. 9100; 1 Ψ, Pawnee N G, off Grasslands Rd 63, Siderhurst L & M, 21 - Aug- 1999, DMNS ZA. 3654; Kansas, Barton County, 1 ɗ, Great Bend, 28 - Aug- 1967, NHMLA; Ottawa County, 1 Ψ, Delphos KS, Nathan Banks Coll, 2506 as P. cornutus, 30 - Dec- 1899, AMNH; Montana, Yellowstone County, 2 ɗ, 2 Ψ, 5 mi NNW Billings, Vogel B, 19 - May- 1974, DMNS ZA. 8954; 1 Ψ, 25 mi NNE Billings, Vogel B, 22 - Jun- 1964, DMNS ZA. 662; Nebraska, Thomas County, 2 ɗ, Thomas County, 18 - Aug- 1958, DPI; 1 ɗ, Halsey, R Henzlik, ID'd as P. pullulus by M Muma, 14 - Aug- 1958, DPI; 4 ɗ, 1 Ψ, Halsey, R Henzlik, ID'd as P. pullulus by M Muma, 13 - Jun- 1958, DPI; 1 Ψ, Halsey, R Henzlik, ID'd as P. pullulus by M Muma, 14 - Sep- 1958, DPI; 2 ɗ, Halsey, R Henzlik, ID'd as P. pullulus by M Muma, 18 - Aug- 1958, DPI; 1 ɗ, Halsey, R Henzlik, ID'd as P. pullulus by M Muma, 01 - Sep- 1958, DPI; 1 ɗ, 2 Ψ, Halsey, R Henzlik, ID'd as P. pullulus by M Muma, 01 - Sep- 1958, DPI; New Mexico, Cibola County, 1 ɗ, El Malpais National Monument, D C Lightfoot, 16 Aug – 19 Sept 1991, UNM; Eddy County, 1 ɗ, 6 mi S Artesia, Vogel B, 26 - Apr- 1969, DMNS ZA. 9094; Grant County, 16 ɗ, 2 Ψ, Burro Mountains, 16 - Jun- 1972, DPI; 2 ɗ, 2 Ψ, same locale, 29 - Jun- 1973, DPI; 7 ɗ, 7 Ψ, same locale, 16 - Aug- 1973, DPI; 1 ɗ, 8 Ψ, same locale, 01 - Oct- 1973, DPI; 2 Ψ, same locale, 14 - Jun- 1973, DPI; 1 Ψ, same locale, 03 - Jan- 1973, DPI; 3 ɗ, 2 Ψ, same locale, 18 - Apr- 1972, DPI; 3 ɗ, 2 Ψ, same locale, 01 - Aug- 1973, DPI; 1 ɗ, 7 Ψ, same locale, 15 - May- 1972, DPI; 1 ɗ, same locale, 01 - Oct- 1972, DPI; 1 Ψ, same locale, 01 - Dec- 1972, DPI; 1 Ψ, same locale, 01 - Nov- 1973, DPI; 4 ɗ, 2 Ψ, same locale, 16 - Aug- 1972, DPI; 5 ɗ, 6 Ψ, same locale, 14 - Jul- 1972, DPI; 3 Ψ, same locale, 31 - Aug- 1972, DPI; 1 Ψ, same locale, 01 - Nov- 1973, DPI; 1 Ψ, same locale, 03 - Nov- 1972, DPI; 1 Ψ, same locale, 02 - Apr- 1973, DPI; 1 Ψ, same locale, 03 - Nov- 1972, DPI; 2 ɗ, same locale, 15 - Oct- 1973, DPI; 3 ɗ, 3 Ψ, same locale, 16 - Jul- 1973, DPI; 5 ɗ, 4 Ψ, same locale, 01 - Jun- 1972, DPI; 4 ɗ, 1 Ψ, same locale, 15 - Sep- 1973, DPI; 1 ɗ, same locale, 03 - Jul- 1973, DPI; 1 ɗ, same locale, 03 - Jul- 1973, DPI; 1 ɗ, 1 Ψ, same locale, 31 - May- 1973, DPI; 4 ɗ, 3 Ψ, same locale, 31 - Jul- 1972, DPI; 1 ɗ, same locale, 03 - May- 1972, DPI; 1 Ψ, same locale, 01 - Jul- 1972, DPI; 1 ɗ, 2 Ψ, same locale, 15 - May- 1973, DPI; 7 ɗ, 6 Ψ, Hurley, Yucca-allthorn-Mesquite, 01 - Jul- 1972, DPI; 4 Ψ, same locale, 17 - Nov- 1972, DPI; 24 ɗ, 14 Ψ, same locale, 02 - Aug- 1973, DPI; 1 Ψ, same locale, 01 - Dec- 1972, DPI; 4 ɗ, 8 Ψ, same locale, 15 - Sep- 1972, DPI; 16 ɗ, 5 Ψ, same locale, 01 - Sep- 1972, DPI; 10 ɗ, 6 Ψ, same locale, 16 - Sep- 1973, DPI; 7 ɗ, 7 Ψ, same locale, 30 - Jul- 1972, DPI; 2 ɗ, same locale, 03 - Jan- 1973, DPI; 29 ɗ, 16 Ψ, same locale, 17 - Jul- 1973, DPI; 9 ɗ, 7 Ψ, same locale, 01 - Aug- 1973, DPI; 8 ɗ, 4 Ψ, same locale, 03 - Oct- 1972, DPI; 16 ɗ, 12 Ψ, same locale, 15 - Jun- 1972, DPI; 3 ɗ, 3 Ψ, same locale, 01 - Nov- 1973, DPI; 15 ɗ, 11 Ψ, same locale, 01 - Jun- 1973, DPI; 2 ɗ, 3 Ψ, same locale, 16 - Oct- 1973, DPI; 10 ɗ, 9 Ψ, same locale, 16 - May- 1973, DPI; 2 Ψ, same locale, 16 - Jan- 1973, DPI; 2 Ψ, same locale, 15 - Nov- 1973, DPI; 19 ɗ, 14 Ψ, same locale, 30 - Jun- 1973, DPI; 24 ɗ, 28 Ψ, same locale, 16 - Jun- 1973, DPI; 4 Ψ, same locale, 16 - Jul- 1972, DPI; 1 Ψ, same locale, 04 - May- 1972, DPI; 1 Ψ, same locale, 02 - Feb- 1973, DPI; 10 ɗ, 7 Ψ, same locale, 14 - Aug- 1972, DPI; 1 ɗ, same locale, 03 - Nov- 1972, DPI; 6 ɗ, 8 Ψ, same locale, 16 - Jul- 1972, DPI; 1 ɗ, 1 Ψ, same locale, 19 - Apr- 1972, DPI; 1 ɗ, 2 Ψ, same locale, 02 - Apr- 1973, DPI; 1 ɗ, same locale, 15 - Feb- 1973, DPI; 2 ɗ, 8 Ψ, same locale, 01 - Nov- 1972, DPI; 25 ɗ, 16 Ψ, same locale, 17 - Aug- 1973, DPI; 2 ɗ, 4 Ψ, same locale, 16 - Apr- 1973, DPI; 2 Ψ, same locale, 16 - Oct- 1972, DPI; 6 ɗ, 1 Ψ, same locale, 02 - Oct- 1973, DPI; 2 ɗ, 1 Ψ, same locale, 16 - May- 1972, DPI; 1 Ψ, same locale, 03 - Dec- 1973, DPI; 1 Ψ, same locale, 01 - Mar- 1973, DPI; 1 ɗ, Silver City, 01 - Jul- 1972, DPI; 1 Ψ, same locale, 02 - Jan- 1973, DPI; 1 Ψ, same locale, 01 - Jul- 1972, DPI; 1 Ψ, same locale, 01 - Sep- 1972, DPI; 1 ɗ, same locale, 01 - Sep- 1972, DPI; 1 Ψ, same locale, 13 - Nov- 1973, DPI; 1 ɗ, same locale, 31 - May- 1972, DPI; 1 ɗ, same locale, 14 - Jun- 1972, DPI; 1 ɗ, same locale, 10 - Apr- 1972, DPI; 1 ɗ, 1 Ψ, same locale, 15 - Jul- 1972, DPI; 2 ɗ, same locale, 15 - Jul- 1972, DPI; 1 ɗ, same locale, 16 - May- 1972, DPI; 1 ɗ, 1 Ψ, same locale, 14 - Jun- 1972, DPI; 2 ɗ, same locale, 01 - Sep- 1972, DPI; 1 ɗ, 1 Ψ, same locale, 03 - Dec- 1973, DPI; 1 Ψ, same locale, 16 - May- 1972, DPI; 1 Ψ, same locale, 16 - May- 1973, DPI; 1 ɗ, same locale, 15 - Sep- 1972, DPI; 1 ɗ, same locale, 14 - Jun- 1972, DPI; 1 ɗ, same locale, 01 - Jul- 1972, DPI; 3 ɗ, 2 Ψ, same locale, 15 - Oct- 1973, DPI; 1 ɗ, 1 Ψ, same locale, 01 - Jul- 1972, DPI; 5 ɗ, 18 Ψ, same locale, 15 - Sep- 1973, DPI; 1 Ψ, same locale, 01 - Jul- 1972, DPI; 1 Ψ, same locale, 15 - Aug- 1972, DPI; 1 Ψ, same locale, 30 - Jul- 1972, DPI; 1 ɗ, same locale, 30 - Jul- 1972, DPI; 1 ɗ, same locale, 01 - Jul- 1972, DPI; 1 ɗ, same locale, 10 - Apr- 1972, DPI; 2 ɗ, same locale, 01 - Sep- 1972, DPI; 3 ɗ, 3 Ψ, same locale, 14 - Jun- 1972, DPI; 1 ɗ, same locale, 15 - Jul- 1972, DPI; 1 ɗ, same locale, 18 - Nov- 1972, DPI; 1 ɗ, same locale, 19 - Apr- 1972, DPI; 2 ɗ, 3 Ψ, same locale, 01 - Jun- 1972, DPI; 1 ɗ, same locale, 15 - Jul- 1972, DPI; 1 ɗ, same locale, 03 - Oct- 1972, DPI; 1 Ψ, same locale, 15 - Aug- 1972, DPI; 2 ɗ, 2 Ψ, same locale, 01 - Jul- 1972, DPI; 1 Ψ, same locale, 14 - Jun- 1972, DPI; 2 ɗ, same locale, 30 - Jul- 1972, DPI; 1 Ψ, same locale, 01 - Sep- 1972, DPI; 1 ɗ, 1 Ψ, same locale, 15 - Aug- 1972, DPI; 1 Ψ, same locale, 31 - May- 1972, DPI; 1 Ψ, same locale, 16 - Mar- 1973, DPI; 4 ɗ, 1 Ψ, Same locale, 30 - Jul- 1972, DPI; 1 Ψ, same locale, 02 - Jan- 1973, DPI; 1 ɗ, same locale, 01 - Sep- 1972, DPI; 1 ɗ, same locale, 01 - Sep- 1972, DPI; 3 ɗ, same locale, 01 - Jul- 1972, DPI; 1 ɗ, same locale, 03 - Oct- 1972, DPI; 2 ɗ, same locale, 14 - Jun- 1972, DPI; 1 Ψ, same locale, 15 - Jul- 1972, DPI; 1 Ψ, same locale, 03 - Oct- 1972, DPI; 1 Ψ, same locale, 03 - Oct- 1972, DPI; 1 ɗ, same locale, 31 - May- 1973, DPI; 1 Ψ, same locale, 15 - Aug- 1972, DPI; 1 Ψ, same locale, 19 - Apr- 1972, DPI; 8 ɗ, 10 Ψ, same locale, 01 - Sep- 1973, DPI; 2 ɗ, 2 Ψ, same locale, 29 - Jun- 1973, DPI; 6 ɗ, 10 Ψ, same locale, 16 - Aug- 1973, DPI; 1 Ψ, same locale, 16 - Oct- 1972, DPI; 1 ɗ, same locale, 31 - May- 1972, DPI; 3 Ψ, same locale, 01 - Nov- 1973, DPI; 1 ɗ, same locale, 01 - Jul- 1972, DPI; 1 ɗ, same locale, 15 - Jul- 1972, DPI; 1 ɗ, same locale, 15 - Aug- 1972, DPI; 1 ɗ, same locale, 15 - Aug- 1972, DPI; 1 Ψ, same locale, 01 - Jul- 1972, DPI; 1 ɗ, same locale, 01 - Jul- 1972, DPI; 1 ɗ, same locale, 14 - Jun- 1972, DPI; 1 Ψ, same locale, 03 - Oct- 1972, DPI; 2 ɗ 1 Ψ, same locale, 15 - Aug- 1972, DPI; 1 ɗ, same locale, 19 - Apr- 1972, DPI; 1 ɗ, same locale, 03 - Oct- 1972, DPI; 1 ɗ, same locale, 31 - May- 1972, DPI; 1 Ψ, same locale, 03 - Oct- 1972, DPI; 1 Ψ, same locale, 16 - May- 1972, DPI; 1 ɗ, same locale, 15 - Aug- 1972, DPI; 1 ɗ, same locale, 01 - Sep- 1972, DPI; 1 ɗ, same locale, 15 - Sep- 1972, DPI; 1 ɗ, same locale, 15 - Aug- 1972, DPI; 1 ɗ, 2 Ψ, same locale, 01 - Jul- 1972, DPI; 1 ɗ, same locale, 30 - Jul- 1972, DPI; Hidalgo County, 2 Ψ, Lake Cienega, US 80, 28 - Mar- 1963, CU; 1 ɗ, 1 Ψ, Big Hatchet Ranch-Lorrea, 29 - Jun- 1977, DPI; 2 ɗ, same locale, 19 - Jun- 1977, DPI; 2 ɗ, 4 Ψ, same locale, 28 - Jul- 1977, DPI; 1 Ψ, same locale, 29 - Jul- 1977, DPI; 1 Ψ, same locale, 23 - May- 1977, DPI; 1 ɗ, same locale, 29 - Jul- 1977, DPI; 1 ɗ, same locale, 29 - Jul- 1977, DPI; 1 Ψ, same locale, 29 - Jul- 1977, DPI; 1 ɗ, same locale, 29 - Jul- 1977, DPI; 6 ɗ, 3 Ψ, same locale, 03 - Jul- 1977, DPI; 1 ɗ, same locale, 03 - Jul- 1977, DPI; 2 Ψ, same locale, 28 - Jun- 1977, DPI; 1 ɗ, 1 Ψ, U-Ranch, Dog Springs or Stone cabin, 18 - May- 1977, DPI; 2 ɗ, 3 Ψ, same locale, 30 - Jun- 1977, DPI; 6 ɗ, 6 Ψ, same locale, 15 - Jul- 1977, DPI; 5 ɗ, 7 Ψ, same locale, 12 - Jul- 1977, DPI; Quay County, 1 Ψ, 9 mi W Tucumcari NM 104, 05 - Apr- 1962, CU; 1 Ψ, San Jon, Mead J & Parks P, 02 - Jan- 1965, DMNS ZA. 1942; Sandoval County, 3 ɗ, 3 Ψ, Bandelier National Monument, D C Lightfoot, 13 - Jul- 1993, UNM; Socorro County, 1 Ψ, Dripping springs, 31 - May- 1962, CU; 5 ɗ, 5 Ψ, Sevilleta LTER, S Brantley, 30 - Dec- 1899, UNM; Valencia County, 3 ɗ, 3 Ψ, 5 mi SE of Suwanee, W Ivie, ID'd as P. utahensis by Gertsch, 05 - Sep- 1941, AMNH; South Dakota, Pennington County, 1 ɗ, 5 mi S Rapid City, V Roth, 19 - Sep- 1950, AMNH 3; Texas, Bailey County, 1 Ψ, Dune S E Muleshoe, J M Rowland, 22 - Jul- 1972, AMNH; Dallam County, 1 Ψ, 1 mi east Texas / New Mexico border, Cushing P E, 01 - Oct- 2004, DMNS ZA. 7690; Knox County, 2 ɗ, 4 Ψ, 10 Mi W Benjamin, J M Rowland, 31 - May- 1973, AMNH; Lubbock County, 1 ɗ, Ψ, West Tech Field, Lubbock, J M Rowland, 29 - Jul- 1972, AMNH; 4 ɗ, same locale, J M Rowland, 06 - Aug- 1972, AMNH; 1 ɗ, same locale, J M Rowland, 29 - Jul- 1972, AMNH; 1 ɗ, 10 - Jun- 1981, DPI; 1 Ψ, Lubbock, J C Cokendolpher, 01 - Feb- 1980, DPI; 1 ɗ, Lubbock, J C Cokendolpher, 10 - Jun- 1981, DPI; Oldham County, 2 Ψ, Adrian, W Ivie, 09 - Apr- 1933, AMNH; Utah, Carbon County, 2 Ψ, On desert between Price and Wellington, W Ivie, 24 - Oct- 1931, AMNH; 2 Ψ, Price, under boards, MCZ 29864, no date, MCZ; Carbon County, 1 ɗ, 4 mi S Blanding UT, State Hwy 210 & Hwy 191, Brookhart J O & I P, 10 - Jun- 2000 – 26 - Aug- 2000, DMNS ZA. 8946; 1 Ψ, same locale, Brookhart J O & I P, 27 - Aug- 2000 – 27 - May- 2001, DMNS ZA. 8948; 3 ɗ, 2 Ψ, same locale, Brookhart J O & I P, 27 - Aug- 2000 – 27 - May- 2001, DMNS ZA. 8944; 1 ɗ, 6 Ψ, 9 mi N Bluff UT, State Rd 230 & Hwy 191, Brookhart J O & I P, 10 - Jun – 26 - Aug- 2000, DMNS ZA. 9002; 1 ɗ, 3 Ψ, same locale, Brookhart J O & I P, 26 - Aug- 2000 – 26 - May- 2001, DMNS ZA. 8953; 1 Ψ, same locale, Brookhart J O & I P, 26 - Aug- 2000 – 26 - May- 2001, DMNS ZA. 8945; Uintah County, 1 Ψ, Dinosaur N M, Cub Creek, Slowik J, 13 - Aug- 2006, DMNS ZA. 13090; 2 Ψ, White River, 3 mi S Bonanza, Durden B & C, 7 – 9 Aug 1964, DMNS ZA. 1940; 1 Ψ, White River, 3 mi S Bonanza, Durden B & C, 7 – 9 Aug 1964, DMNS ZA. 1947; Wyoming, Albany County, 1 ɗ, SW of Laramie, B Patterson, 24 - Jul- 1960, AMNH.

Diagnosis. Specimens may be distinguished by: male spur with truncated end (Fig. 82), procursus long and narrow (Fig. 86), bifurcate bulb apophysis (Fig. 84), epigynum MEP without ridges (Fig. 87), PEP projection narrow with the dmPEP touching (Fig. 88).

Remarks. This species is can be confused with P. pullulus or P. re d e m p t u s in the east and P. u t a h e n s i s in the west. Females of P. imitatus can be separated from P. utahensis by the angular shape of the MEP around the PEP projection, and the dmPEP touching. Males of the two can be separated by the truncated spur. The spurs of P. imitatus, P. pullulus, and P. re d e m p t u s are all of similar shape, males differ in the longer and more narrow procursus. Females can be separated from P. pullulus by the narrow PEP projection and its’ distribution, from P. re d e m p t u s by the narrow projection, its’ large relative size with the carapace being ~ 1 mm or greater, and femur I being about 4 times the length of the carapace. Internal epigynal characteristics also can be used to separate the species (compare Figs. 89 and 136).

Distribution. 98 th parallel westward to 112 th parallel, north into Montana and south into Western Texas. PLATE 11. Figures 82 – 91. Psilochorus imitatus Gertsch and Mulaik. 82 – 86. Male. 82. Dorsal view of chelicerae. 83. Lateral view of chelicera. 84 – 85. Dorsal view of bulb apophysis. 86. Lateral view of procursus. 87 – 91. Epigynum. 87. Anterior view. 88. Ventral view. 89. Posterior view. 90. Dorsal view. 91. Lateral view.